William daekee



UNITED STATES PATENT OFFICE.

WM. DARKER, JR., OF WEST PHILADELPHIA, PENNSYLVANIA, ASSIGNO'R TO J. B.THOMPSON.

RING-SPINNING FRAME.

Specification of Letters Patent No. 13,024, dated June 5, 1855.

creased wi-thout increasing the danger of breaking the threads.

The great obstacle to the increase of speed in the common ring spinningframe beyond a certain degree, is that the friction of the traveler uponthe ring becomes so great as to produce such a degree of tension as tobreak the thread. I propose to reduce this friction by giving to thering a rotary mo-tion at a slower speed than but in the same directionas the spindle and this invention consists in cert-ain methods of ap-.plying the ring and securing the bobbin to the spindle for thatpurpose.

To enable others skilled in the art to make and use my invention I willproceed to describe its construction and operation.

A, is one of the spindles of a ring spinning frame; B, is the step rail,and C, a rail corresponding to the ring rail of the common frame,serving in this case also as a guide rail. The spindle carries a whir c,by kwhich it receives motion through a band e, from the spindle bandcylinder H, arranged in the usual manner. D, is the ring which issupported at the top of a tin or other light metal socket E, largeenough to receive the bobbin and secured to a tube F, tting easily onthe spindle and resting on the top of the guide a, in the rail C. Thistube F, carries a whirl c, by which it receives rotary motion through aband d, from a cylinder G, the said rotary motion being also imparted tothe ring likewise. J, is the bobbin, which has a wire f, insertedtransversely through it near the top to form a bail and to rest for thepurpose of supporting the bobbin in a slot Z, at the top of the spindle.The bobbin is bored out about half its depth from the top to'it snuglyto the spindle but the lower half is bored large enough for the tube F,to pass freely into it. This allows the tube to be of proper length tosteady the ring and at the same time allows the ring to be raised by therail C, high enough to wind to the top of the bobbin.

g, is the traveler.

The band cylinders H and Gr, are to receive motion the one from theother through a band j, running over two cone pulleys at one end andhence their relative speeds may be properly adjusted with facility byshifting the band. Y

By causing the spindle to revolve at the rate of, say, ten thousandrevolutions per minute and the ring to revolve at a speed. of, say, fourthousand, the friction of the traveler on the ring will be no greaterthan if the spindles revolved at a speed of siX -thousand with the ringstationary and hence there will be no greater danger of breaking thethread. Generally speaking this improvement will enable the spindles tobe run at nearly double the ordinary speed and this without the sametrouble, for it will obviate the necessity of changing the travelers touse lighter or heavier ones for finer and coarscr yarn as is necessaryin the common ring frame, which alone will effect an important saving ina manufactory employing a large number of spindles. It affords facilityfor varying the relative speeds of the spindles and rings while themachine is in operation by simply shifting the band j, along the conepulleys; this variation of the relative speed during the operation isnecessary to enable a uniform tension to be produced upon the thread inbuilding conical or shuttle bobbins.

`What I claim as my invention and desire to secure by Letters Patent, is

l. The method substantially herein described of applying the rings toenable them to receive rotary motion, that is to say attaching them tothe top of metal sockets E, Which are large enough to reproper length tosteady the ring Without inoeive the bobbins and are secured to tubestei'fering with the bobbin. F, which revolve easily upon the spindles.

2. The Within described method of at- WILLIAM DARKER JR' 5 taching thebobbin to the spindle by a bail Witnesses:

f, which drops in a slot at the top of the WVM. H. THOMPSON, spindle,whereby the bobbin is properly se- SAMUEL HANCOCK,

cured and the tube is allowed to be of JAMES HARGREAVES.

